文献类型：期刊文献

英文题名：Transesterification of Pistacia chinensis oil for biodiesel catalyzed by CaO-CeO₂ mixed oxides

作者：Yu, Xinhai[1,2];Wen, Zhenzhong[1];Li, Hongliang[1];Tu, Shan-Tung[1];Yan, Jinyue[3,4]

机构：[1]E China Univ Sci & Technol, Sch Mech Engn, Key Lab Safety Sci Pressurized Syst MOE, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China;[3]Malardalen Univ, Sch Sustainable Dev Soc & Technol, SE-72123 Vasteras, Sweden;[4]Royal Inst Technol, Sch Chem Sci & Engn, SE-10044 Stockholm, Sweden

年份：2011

卷号：90

期号：5

起止页码：1868

外文期刊名：FUEL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000288243100020)】；

基金：We are grateful for the financial support given by the Swedish Research Links Programme of the Swedish Research Council (VR) and the China Natural Science Foundation (contract No. 20606011).

语种：英文

外文关键词：CaO-CeO2; Biodiesel; Transesterification; Homogeneous; Heterogeneous

摘要：This study investigates the use of CaO-CeO2 mixed oxides as solid base catalysts for the transesterification of Pistacia chinensis oil with methanol to produce biodiesel. These CaO-CeO2 mixed-oxide catalysts were prepared by an incipient wetness impregnation method and characterized by X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy and scanning electron microscopy. The cerium improved the heterogeneous catalytic stability remarkably due to the defects induced by the substitution of Ca ions for Ce ions on the surface. The best catalyst was determined to be C0.15-973 (with a Ce/Ca molar ratio of 0.15 and having been calcined at 973 K), considering its catalytic and anti-leaching abilities. The effects of reaction parameters such as the methanol/oil molar ratio, the amount of catalyst amount and the reaction temperature were also investigated. For the C0.15-973 regenerated after five reuses, the biodiesel yield was 91%, which is slightly less than that of the fresh sample. The test results revealed that the CaO-CeO2 mixed oxides have good potential for use in the large-scale biodiesel production. (C) 2010 Elsevier Ltd. All rights reserved.